With a paper prototype, you can user test early design ideas at an extremely low cost. Doing so lets you fix usability problems before you waste money implementing something that doesn't work. Designers almost never use paper prototyping in real design projects despite its potentially immense contribution to creating a high-quality user experience. Too Simple to Be True? In this 40-minute video you can learn the basics of paper prototyping and testing to gather usability information and make changes as early in the process as possible.